47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
|
# Copy from https://github.com/silentsokolov/flask-thumbnails/blob/master/flask_thumbnails/storage_backends.py
|
||
|
|
import errno
|
||
|
|
import os
|
||
|
|
from abc import ABC, abstractmethod
|
||
|
|
|
||
|
|
|
||
|
|
class BaseStorageBackend(ABC):
|
||
|
|
def __init__(self, app=None):
|
||
|
|
self.app = app
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def read(self, filepath, mode="rb", **kwargs):
|
||
|
|
raise NotImplementedError
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def exists(self, filepath):
|
||
|
|
raise NotImplementedError
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def save(self, filepath, data):
|
||
|
|
raise NotImplementedError
|
||
|
|
|
||
|
|
|
||
|
|
class FilesystemStorageBackend(BaseStorageBackend):
|
||
|
|
def read(self, filepath, mode="rb", **kwargs):
|
||
|
|
with open(filepath, mode) as f: # pylint: disable=unspecified-encoding
|
||
|
|
return f.read()
|
||
|
|
|
||
|
|
def exists(self, filepath):
|
||
|
|
return os.path.exists(filepath)
|
||
|
|
|
||
|
|
def save(self, filepath, data):
|
||
|
|
directory = os.path.dirname(filepath)
|
||
|
|
|
||
|
|
if not os.path.exists(directory):
|
||
|
|
try:
|
||
|
|
os.makedirs(directory)
|
||
|
|
except OSError as e:
|
||
|
|
if e.errno != errno.EEXIST:
|
||
|
|
raise
|
||
|
|
|
||
|
|
if not os.path.isdir(directory):
|
||
|
|
raise IOError("{} is not a directory".format(directory))
|
||
|
|
|
||
|
|
with open(filepath, "wb") as f:
|
||
|
|
f.write(data)
|